645674975

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1$

素因数の和:201

約数の個数: 96

約数和(自身を含む): 977080320

約数和(自身を除く): 331405345

約数列:

[1, 5, 11, 23, 25, 31, 37, 55, 89, 115, 155, 185, 253, 275, 341, 407, 445, 575, 713, 775, 851, 925, 979, 1147, 1265, 1705, 2035, 2047, 2225, 2759, 3293, 3565, 4255, 4895, 5735, 6325, 7843, 8525, 9361, 10175, 10235, 12617, 13795, 16465, 17825, 21275, 22517, 24475, 26381, 28675, 30349, 36223, 39215, 46805, 51175, 63085, 63457, 68975, 75739, 82325, 102083, 112585, 131905, 151745, 181115, 196075, 234025, 290191, 315425, 317285, 378695, 510415, 562925, 659525, 698027, 758725, 833129, 905575, 1122913, 1450955, 1586425, 1893475, 2347909, 2552075, 3490135, 4165645, 5614565, 7254775, 11739545, 17450675, 20828225, 25826999, 28072825, 58697725, 129134995, 645674975]

約数ペア:

[(1, 645674975), (5, 129134995), (11, 58697725), (23, 28072825), (25, 25826999), (31, 20828225), (37, 17450675), (55, 11739545), (89, 7254775), (115, 5614565), (155, 4165645), (185, 3490135), (253, 2552075), (275, 2347909), (341, 1893475), (407, 1586425), (445, 1450955), (575, 1122913), (713, 905575), (775, 833129), (851, 758725), (925, 698027), (979, 659525), (1147, 562925), (1265, 510415), (1705, 378695), (2035, 317285), (2047, 315425), (2225, 290191), (2759, 234025), (3293, 196075), (3565, 181115), (4255, 151745), (4895, 131905), (5735, 112585), (6325, 102083), (7843, 82325), (8525, 75739), (9361, 68975), (10175, 63457), (10235, 63085), (12617, 51175), (13795, 46805), (16465, 39215), (17825, 36223), (21275, 30349), (22517, 28675), (24475, 26381)]